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| - The United States of America (commonly abbreviated to the United States, the U.S., the USA, America, and the States) is a federal constitutional republic comprising fifty-two states and a federal district. The country is situated mostly in central North America, where its forty-eight contiguous states and Washington, D.C., the capital district, lie between the Pacific and Atlantic Oceans, bordered by Canada to the north and Mexico to the south. The state of Alaska is in the northwest of the continent, with Canada to the east and Russia to the west, across the Bering Strait. The state of Hawaii is an archipelago in the mid-Pacific, the state of Puerto Rico lies in the Caribbean, while the State of Guyana lies in South America. The country also possesses several territories in the Pacific an
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| abstract
| - The United States of America (commonly abbreviated to the United States, the U.S., the USA, America, and the States) is a federal constitutional republic comprising fifty-two states and a federal district. The country is situated mostly in central North America, where its forty-eight contiguous states and Washington, D.C., the capital district, lie between the Pacific and Atlantic Oceans, bordered by Canada to the north and Mexico to the south. The state of Alaska is in the northwest of the continent, with Canada to the east and Russia to the west, across the Bering Strait. The state of Hawaii is an archipelago in the mid-Pacific, the state of Puerto Rico lies in the Caribbean, while the State of Guyana lies in South America. The country also possesses several territories in the Pacific and Caribbean, as well as several Lunar Colonies. With over 415 million people, the United States is the third largest country by population, and is one of the world's most ethnically diverse and multicultural nations, the product of large-scale immigration from many countries. The U.S. economy is the world's largest national economy, with an estimated 2070 GDP of $35.1 trillion (29% of nominal global GDP and over 33% of global GDP at purchasing-power parity).Per capita income is the world's third-highest. Formed through a War for Independence with the British Empire as a doctrinally anti-imperial country, the United States has progressively risen to become the Dominant Power of the world, and easily the most powerful Superpower in human history. Throughout the 19th century the United States amassed what is now considered its coherent homeland, as well as several exclaves. By the 1870s, its national economy was the world's largest, and has remained as such for over century. The Spanish–American War and World War I confirmed the country's status as a military power. It emerged from World War II as the first country with nuclear weapons and a permanent member of the United Nations Security Council. The end of the First Cold War and the dissolution of the Soviet Union left the United States as the world's sole superpower. The end of World War III left the country the sole military power in space, as well as the largest space colonial power. The country accounts for 36% of global military spending, and is the leading economic, political, and cultural force in the world The US has been a permanent member of the United Nations Security Council since its first session in 1946. It has been a member of the American Free Trade Association since its creation in 2019. It is also a member of the Asia-Pacific Economic and Security Council), NATO, the Space Development Council and the World Trade Organization.
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